Gas-valve.



H. ACocHRAN.

GAS VALVE.

APPucATloN FILED Dec. 2. 1913. 1,156,347. Patented 0ct.12,1915.

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H. A. COCHRAN.

GAS VALVE.

APPLICATION FILED DEC. 2. I9I3.

1,156,347. Patented 0I.12,1915.

2 SHEETS-SHEET 2.

IN VEN TOR WITNESSEIS:

COLUMBIA PLANoR/IPH :0..WA5HINI51-oN. u. c.

' Frio@ IIARRY A. COCHRAN, OE HOUSTON, TEXAS, AssIGNOR To AI/IERICANAUTOMATIG` I WATER HEATER co., :DOING BUSINESS IN TEXAS, A CORPORATION OE ARIZONA.

GAS-VALVE.

Application led December 2, 1913. A Serial No. 804,308.

To all whom z'tmafe/ concern.'

Be it known that I, HARRY A.` COCHRAN, a citizen ofthe UnitedStates, rresiding at Houston, in the county of Harris and State of Texas, haveinvented certain new and usefuly Improvements in Gras-Valves, of which the following is a specification.

This invention relates to new and, useful improvements in a Vgasvalveand has more particular relation to a valve of the character specified` which is adapted to, be used in connection with la water heater' and which is arranged sofas tobe automatically opened by the water current through 'the `water pipe so as to admity gas to the burner whenlwater is drawn olf from the water pipe and a cur rent is thus created in said pipe.

A further feature of the invention resides in the provision of meanswhereby said valve is automatically closed and gas is shut ofi" from the burner when the spigot through which the water is drawn from they water pipe is closed andthe current through said pipe stopped.

With the above and other Objects in View,

the inventionvhas 'particular relation to cerf tain novel features of construction, operation and arrangement of parts, an example of which'is given in, this specification; and illustrated in the accompanying drawings, wherein- Figure 1 is asectional side elevationof the ordinary water heater, showing the connecting gasand water pipes and showing a side elevation of thefvalve in connection therewith.` F ig. 2 ,is ra `plan view of the valve. Fig. 8 is a sectionall side elevation thereof. Fig. t isan enlarged fragmentary` sectionaly side elevationthereof. Fig. 5 is a' bottom view thereof. Fig.` 6 is an edge view of the gatek which operates thevalve. Fig. 7 is a side elevation thereof. Fig. 8 is a plan view of a-metallic `plate in which the upper end 'of thegate vshaft has a bearring. Fig.' 9 is a plan View, of the nut which operates'the valve proper, showing .the op-e erative springl in connection` therewitln` and Fig. 10 shows a bottomr plan l,view ofthe nut holding the stutiing boX of the gate'shaft irl Position. Y

specieation of Lettersratent.

Referring now more particularly tothe drawings, wherein like numerals of refer'- ence designate similar parts in each of the figures, the numeral 1 refers to the ordinary water heater having the coil pipe 2 therein which is supplied from the water pipe 3 and from which leads the draw-off pipe 4, from which water may be discharged J through either ofthe spigots 5, 5, 5,'which may be located in dierent parts of the building.k 1n the heater' l, underneath the coil 2 is the gas burner 6 which is supplied with fuelthrough the` gas pipe 7. The flow of gas through this pipe is controlled by the valve 8, which in turn is Opened by the water current through the pipe 3, which is set iupy when water is drawn Off through one ofthe spigots 5. rThe water supplying the building is delivered from a suitable source of supply through the supply pipe 8 and passes through the cylindrical chamber 9 into the pipe?) and the gas consumed is, de-y livered from the source of supply through the supply pipe 7 and .passes through the cylindrical chamber 8 into the pipe 7. The chambers k8 and 9 are made integral by means of the neck 10. This neck has a bearing in which the vertical shaft 11 rotates and carries the stufling boxr 12 around said shaft, which is heldin position by means of the nut 13. The upper end ofthe shaft Ahas a gate 14, fixed thereon, formed of two thin metallic plates, with a layer of asbestos or some similar material clamped therebetween and which projects beyond the free edges of said plates on all sides. The chamber 9 has acap 15 which is screwed over the upper end thereof, the underside of said caphav-l ing an asbestos lining, 16.y A circular metallic plate 17 is provided which has a central orifice 18 inwhich the upper end of the shaft 11 has a bearing. The rim of the platev 17 ,rests upon an annular shoulder 19 formed inthe upper edge of the chamber wall andv said plateis clamped and firmly` held in po-fl sition by means of the cap 15. rl`he gatele is of suflicient length to' reach .to the chamber wall and in width reaches from the top to the bottom of said chamber. The, chamber 9 has a partition 2O extendingkdiametrically Patented oet. 12, reis.

` andwillrforce the saine yaround to the posiacross the same from wallv to wall andeX- 'tending from top to bottom. The supply pipe 3 .enters.the.chamberon one sideof this Vpartitionandthepipe leads out from-the same side, so that theV water -currentpasses through 'said side of said chamber and Vis partitioned "from vthe Vother side by `the partition 20. The gate 14Y is arranged in k,the chamber so that when a current is setup therethrough the water delivered fromthe pipe 3V will be deliveredin behind said gate 22 lbeing secured on said shaft by meansk ofitheflock nut 23. rllhe bottom of the chamberf S-'is openbut itswalls converge inwardly f andfaJ circular -valve 241i-s`provided to open and close said 'flower end v'of said chamber; This 'valve has an inwardly -threaded socket member upstanding therefrom tin which the I nut'22 is threaded. |Ihe Valve 24 is'iixcd the:` chamber Sis Ja-V small gas Ipipe 2-8 whichV againstturningby means of .the arms,26,

26 which are 4"fixed 'thereto and 4whose lfree ends Elock -a'gainst 1 the lshoulders` 27, 27 #pros jec'ting out -rom the wall Aof A the chamber 9.y

'When-fone of "-thespigots 5 ris opened a water current will be vcreated through -the water pipes, hereinbefore described, -which will'fforce fthe Lgate v14 around vin fthe direction indicated bythe arrow in 4flig. 2, causinga"correspondingrotation of theshaft 11 and the f nut22 vand loperating Ato force -thc valvei24 downwardly. As .hereinbefore eX- pla'inedythe gas supplyjpipe 7 communicates lwith" the 'chamber-S and when said valve 24 `is vforced downwardly, v.the gas passes I=`rona lsaid chamber finto the-pipe 7 and thence" to `Athe burner'6. Leadingffrom conducts a jet of gas' into the burner chamber and this `jet constantly feeds a small Y flame'whichiis 4always; burning in said chamber, sothat whengasisa'dmitted through the pipe j'7 t'o theAi burnery 6 1 it is immediately ignited. "A -strong coil 'spring-29 yis provided-inithe chamber 8 which surroundsthe lower Lendof shaft' E11. vThe 4'upper vend fof saidspringfis secured tothe lowerend of neck `1O-anolthe lower end of the vspringhas connection with f the nut 22. `The current of water `opera-ting zaga-inst the lgate 14 fis strongwenoughitofturn *the shaft 11, overcoming the Vtension of said spring 29. but when the water'spigot has been closed and the current through the water pipes is stopped the tension of thespring operates to force thev gate 14 back to its normal position, the oriice 21 being provided'in said gateto'permit the water behind the; gate Vto passther'ethrough as the gate is moved baciato itsoriginal position. rlhis operation of theshaft 11 has the effect, through4 the nut 22 Yot lifting the valve 24and shutting oil the flow of gas from the vchambers -to-'theburners.y Itis thus obvious that by the use of a valve of this character in connection vwith the gas supply-and water supply pipes, het wateris kalways lavailable and that the operation ofl drawing ott lthe lwater Jfrom-thefpipe'for use will automatically Vresult` in -lighting vthe gas in the ywaterr yheater and the heating oflthe waterfin thecoils of said heater. f V l What lI claim. isf-n Y 11. A-y device of the character described '-including l two chambers, a water inlet `and outlet iforfoneot-said chambers and 'a gas inlet and outlet orthe otherv of said chambers, yvalve having an internally threaded socket for closing said' gas-outlet, -a means for Lsecuring said valve'against rotation, a rota-table shaft, lone fend oiwvhichy h as a threaded connection in isaidl-socket-and the other -end of kwhich projects finto -thef first mentioned Y chamber, VLa gate fixed to lsaid shaft and located in vrthe first --mentioned chamber, soras tofbe operated 4by the -current passing `therethrough and partiallyrctate said -shaftfin one direction, 'so as :to move the valve lengthwise, in one direction relativeto the shaft, and a resilient finember operatively connected with the Vshaft andftending tocrotate thensame in the oppositeV direction, :when the "current is A cut v off and move 'the 4valve'i'in the'A opposite `direction.

2. A device of the character described including vtwo chambers, a Aneck connecting said chambers, a water inlet land outlet for Aone of saidchambers and a gas inlet-and outletfor theotherofcsaid chambers, a cir# cular valve, having an internally threaded socket-member upstanding therefrom, a seat with which` the valve coperates to vopen and close'said'gas outlet, laterally extending arms carried by saidv valve and engaging Y with the-'seat and securing said-valve against rotation, arotat-able shaft, one `end of which has a threaded Vconnection Vrin `lsaid socket and `which "extends l'through said neck and whose otherl end projects into the first*- men? tioned-chambena lgate iiXed tosaid shaft 7 and' located inf the first mentionedA chamber so asto bel operated bythe current passing therethrough andp'artiallyfrotatefsaid shaft in one direction, soy as to move-the lvalve lengthwise with respect tothe shaft, against In testimony whereof I have signed my said seat, and a Coil spring surrounding nameto this specification in the presence of said shaft and operatively Connected theretWo subscribing Witnesses. with and tending to rotate the same in the HARRY A. COCHRAN'. opposite direction, When the current is out Vitnesses:

off, and move the valve, in the opposite di- J. W. YEAGLEY,

rection and from the seat. v MAY MONTGOMERY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

